Year 2015. Hanna (mother) and Darka (girlfriend) are united by the memories of Danya, who died in 2014 on the Maidan. Hanna's life path went from a Maidan activist in 2004 to a high-level government official. Through the relationship between the two women, it turns out that Hanna was associated with the corruption that led to mafia revenge in Ukraine in 2010, and ended up the Revolution of Dignity in 2014. Hanna is increasingly convinced that her personal actions are linked to her son's death.

What stands behind the Black Square, painted in 1915 by the obsessive artist Kazymyr Malevych? For his competitors, a fraud, for the Soviet regime, a secret code, for one woman, a love letter, for the people of Ukraine – a prophecy…

By chance, on Christmas Eve, completely different passengers with their own problems and dreams board the same train, and now they all have to arrange Christmas dinner right in the dining car. While waiting for the first star, all the passengers come together as one big Ukrainian family. And miracles begin to happen.